5. Define mericarp. In which plant you find. it? 6. Give the technical description of ovary in. Solanum nigrum. 7. What
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Intermediate BOTANY Model Papers BOTANY, PAPER - I (English Version) Time: 3 Hours
Max. Marks: 60
Section - A Note: Answer all questions. Each answer may be limited to 5 lines. 10 × 2 = 20 1. What is flora? 2. What is the principle underlying the use of cyanobacteria in agricultural fields for crop improvement? 3. Mention the fern characters found in Cycas. 4. Define placentation. What type of placentation is found in Dianthus?
BOTANY, PAPER - I (Telugu Version) Time: 3 Hours Max. Marks: 60
5. Define mericarp. In which plant you find it? 6. Give the technical description of ovary in Solanum nigrum. 7. What is the significance of vacuole in a plant cell? 8. What is middle lamella made of? What is its functional significance? 9. If a tissue has at a given time 1024 cells. How many cycles of mitosis had the original parental single cell undergone? 10. Define population and community.
Section - B Note: Answer any six questions. Each answer may be limited to 20 lines.6 × 4 = 24
Section - A Note: Answer all questions. Each answer may be limited to 5 lines. 10 × 2 = 20 1. What are apoplast and symplast? 2. Why is the R.Q of fats less than that of carbohydrates? 3. What is conjugation? Who discovered it and in which organism? 4. What is the genotype of wrinkled phenotype of pea seeds? 5. Given below is the sequence of coding
strand of DNA in a transcription unit. 5'A A T G C A G C T A T T A G G-3' Write the sequence of a) Its complementary strand. b) The mRNA. What are the components of a transcriptional unit? How can you differentiate between exonucleases and endonucleases? Name the nematode that infects the roots of tobacco plants. Name the strategy adopted to prevent this infestation. Name two semi-dwarf varieties of rice developed in India. Name a microbe used for statin production. How do statins lower the blood
11. Give a brief account of Dinoflagellates. 12. Differentiate between red algae and brown algae. 13. Distinguish between asexual and sexual reproduction. Why is vegetative reproduction also considered as a type of asexual reproduction? 14. Describe the essential organs of Solanaceae. 15. Name the two cell organelles that are double membrane bound. State their functions and draw labeled diagrams of both. 16. Nucleic acid exhibits secondary structure. Justify with example. 17. What is periderm? How does periderm
formation take place in the dicot stems? 18. List out the anatomical adaptations of hydrophytes.
Section - B Note: Answer any six questions. Each answer may be limited to 20 lines. 6 × 4 = 24 11. Explain the steps involved in the formation of root nodule. 12. Explain different types of co-factors. 13. Tabulate any eight differences between C3 and C4 plants/cycles. 14. Write a note on agricultural/ horticultural applications of auxins. 15. Explain the lytic cycle with reference to certain viruses. 16. Define and design a test cross.
Section - C Note: Answer any two questions. Each answer may be limited to 60 lines.2 × 8 = 16 19. Define root modifications. Explain how the root is modified to perform different functions. 20. Draw the diagram of a microsporangium and label its wall layers. Write briefly about the wall layers. 21. Describe the internal structure of dorsiventral leaf with the help of labeled diagram.
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Section - C Note: Answer any two questions. Each answer may be limited to 60 lines. 2 × 8 = 16 19. Explain the reactions of Kreb's cycle. 20. Explain briefly the various processes of recombinant DNA technology. 21. Describe the tissue culture technique and what are the advantages of tissue culture over conventional method of plant breeding in crop improvement programmes?